Re: [swinog] UCEProtect Blacklist (Update)

2007-11-13 Diskussionsfäden Per Jessen
Markus Wild wrote:

 UCE Protect is one of those lists who suffer from a very odd sense of
 reality.. whoever uses that list to protect his mail servers must be
 aware that he'll get a lot of false positives (ie.valid mail won't get
 thru). 

No-one is likely to use uceprotect level3 to block emails, but they
might very well use it for scoring. 


/Per Jessen, Herrliberg

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Re: [swinog] UCEProtect Blacklist (Update)

2007-11-13 Diskussionsfäden Stanislav Sinyagin
 No-one is likely to use uceprotect level3 to block emails, but they
 might very well use it for scoring. 
 
 
 /Per Jessen, Herrliberg

every AS with residential broadband users in it will get easily into that list, 
so what's the value of it?




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RE: [swinog] UCEProtect Blacklist -- join the club

2007-11-07 Diskussionsfäden Per Jessen
Charles Buckley wrote:

 And then there is SORBS, which the ETH use, who have chosen to put the
 shared server I use for mail on a blacklist for some reason.

mail.mauto.com is indeed listed by sorbs - I would check that your
server hasn't been compromised.  Look for traces of an ssh brute force
attack perhaps. 

 Everyone is going crazy about security, so you're likely to see a
 proliferation of providers offering to maintain blacklists, who will
 do it badly.

There is already plenty of such lists - I don't think the number is
likely to grow a awful lot.  

 Much better would be to let the users determine what is spam and what
 is not, getting the ISP out of the role of having to play judge on a
 topic they don't master.

Nah, leave the spam-filtering to us :-)
The user and the ISP both have better things to do.



/Per Jessen, Herrliberg

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RE: [swinog] UCEProtect Blacklist -- join the club

2007-11-07 Diskussionsfäden Daniel Kamm
On Wed, 2007-11-07 at 10:54 +0100, Per Jessen wrote:

commercial

 Nah, leave the spam-filtering to us :-)
 The user and the ISP both have better things to do.

/commercial

:-D
 - Dan

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RE: [swinog] UCEProtect Blacklist -- join the club

2007-11-07 Diskussionsfäden Per Jessen
Per Jessen wrote:

 Charles Buckley wrote:
 
 And then there is SORBS, which the ETH use, who have chosen to put
 the shared server I use for mail on a blacklist for some reason.
 
 mail.mauto.com is indeed listed by sorbs - I would check that your
 server hasn't been compromised.  Look for traces of an ssh brute force
 attack perhaps.

Uh, sorry - I overlooked that you said shared.  Well, according to
SORBS, the server got listed because mail was sent to a spamtrap on 13
August.  It could be one of your co-sharers ...  if I were you, I'd
talk to q-x.ch, and ask them what they're doing about it.



/Per Jessen, Herrliberg

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RE: [swinog] UCEProtect Blacklist -- join the club

2007-11-07 Diskussionsfäden Charles Buckley
I'm far ahead of you -- I already knew all this, and have done all the right
steps.  The server uses strictly SMTP_AUTH; it has not been compromised
beyond the account details of the spammer being circulated.  

The provider moved instantaneously to identify the offender and kick them
out.  The compromised SMTP account is now closed.  But, just as Sunrise,
they are not willing to pay the fee to SORBS to change the status on the
list.  Instead, they have offered to set up a SMART host for me, but that
hasn't happened yet.  

Perhaps this would be a good insurance line -- insuring against Rufmord from
all these neighbourhood network grannies.  But I somehow feel that dealing
with the insurance Bürokraten would be worse than dealing with these issues
by finding ways to protect from SPAM that don't involve hiring a bunch of
self-appointed busybodies to strategically misinterpret actions and
blackmail money out of people who add value by creating arbitrary sets of
losers.  Are we talking about mature individuals here?

The ETH should know better than to be using such people anyway -- I have
informed them of the problem.

Charles

-Original Message-
From: Per Jessen [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, November 07, 2007 12:03 PM
To: swinog@lists.swinog.ch
Subject: RE: [swinog] UCEProtect Blacklist -- join the club

Per Jessen wrote:

 Charles Buckley wrote:
 
 And then there is SORBS, which the ETH use, who have chosen to put
 the shared server I use for mail on a blacklist for some reason.
 
 mail.mauto.com is indeed listed by sorbs - I would check that your
 server hasn't been compromised.  Look for traces of an ssh brute force
 attack perhaps.

Uh, sorry - I overlooked that you said shared.  Well, according to
SORBS, the server got listed because mail was sent to a spamtrap on 13
August.  It could be one of your co-sharers ...  if I were you, I'd
talk to q-x.ch, and ask them what they're doing about it.



/Per Jessen, Herrliberg

-- 
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Re: [swinog] UCEProtect Blacklist -- join the club

2007-11-07 Diskussionsfäden Fabian Wenk

Hello Charles

Charles Buckley wrote:

The ETH should know better than to be using such people anyway -- I have
informed them of the problem.


At ETH Zurich it depends to which subdomain you are sending 
e-mail, because some departments run their own mail server with 
their own policies.


But I guess most others depend on the mail service provided from 
Informatikdienste (ID). I once had a chance to attend a 
presentation of their mail setup (especialy the mx hosts with the 
spam and virus filtering) and therefore I know that they are using 
a few DNS Blacklists to drop mail at the smtp communication. But I 
don't remember which. Contacting the postmaster at ethz.ch should 
help.



bye
Fabian
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RE: [swinog] UCEProtect Blacklist -- join the club

2007-11-07 Diskussionsfäden Daniel Kamm
On Wed, 2007-11-07 at 12:29 +0100, Charles Buckley wrote:
 The provider moved instantaneously to identify the offender and kick them
 out.  The compromised SMTP account is now closed.  But, just as Sunrise,
 they are not willing to pay the fee to SORBS to change the status on the
 list. 

As ISP you don't have to pay a fee for delisting at SORBS. Simply mail
to [EMAIL PROTECTED] and tell them your ASN. Without ASN your mail
will be dropped.

Cheerio
 - Dan

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RE: [swinog] UCEProtect Blacklist -- join the club

2007-11-06 Diskussionsfäden Charles Buckley
And then there is SORBS, which the ETH use, who have chosen to put the
shared server I use for mail on a blacklist for some reason.

Everyone is going crazy about security, so you're likely to see a
proliferation of providers offering to maintain blacklists, who will do it
badly.  

Much better would be to let the users determine what is spam and what is
not, getting the ISP out of the role of having to play judge on a topic they
don't master.


-Original Message-
From: Per Jessen [mailto:[EMAIL PROTECTED] 
Sent: Saturday, November 03, 2007 4:54 PM
To: swinog@lists.swinog.ch
Subject: Re: [swinog] UCEProtect Blacklist

Xaver Aerni wrote:

 Wy is unproffesional,
 UCEprotect is blocking AS I think this isn't proffesional. 

Actually, UCEprotect is not blocking anything.  They only provide the
means for other people to do so.  Anyone who uses UCEprotect level3
have been duly warned. 


/Per Jessen, Herrliberg

-- 
http://www.spamchek.com/ - your spam is our business.

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Re: [swinog] UCEProtect Blacklist

2007-11-04 Diskussionsfäden Peter Keel
* on the Sat, Nov 03, 2007 at 02:00:15PM +0100, Per Jessen wrote:
 I would be interested to know why you find UCEprotect to be unreliable
 and unprofessional?  

Because of their delisting-procedure. How many networks will end 
up in there which have been sending spam at some time, but don't 
ever sent spam since then, because their admins fixed the problem,
or the net got reassigned or whatever? And maybe their admins didn't
even know they're on uceprotect, or the new admins don't know or 
whatever? 

Every blacklist who does not delete the listings automatically will 
end up eventually with a huge mass of false positives, which 
indicates a failure of the system. 

With UCEprotect, I estimate about 30% of their entries being 
listed are such false positives, and this will of course raise
and raise.. 

Cheers
Seegras
-- 
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neither liberty nor safety. -- Benjamin Franklin
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Re: [swinog] UCEProtect Blacklist

2007-11-04 Diskussionsfäden Per Jessen
Peter Keel wrote:

 * on the Sat, Nov 03, 2007 at 02:00:15PM +0100, Per Jessen wrote:
 I would be interested to know why you find UCEprotect to be
 unreliable and unprofessional?
 
 Because of their delisting-procedure. How many networks will end
 up in there which have been sending spam at some time, but don't
 ever sent spam since then, because their admins fixed the problem,
 or the net got reassigned or whatever? 

UCEprotect level1 and -2 both include automatic delisting.  Only level3
does not seem to have automatic delisting.  

 With UCEprotect, I estimate about 30% of their entries being
 listed are such false positives, and this will of course raise
 and raise..

I ran some stats on our traffic (we use UCEprotect 1,2,3) for all
of october - false positives per level:

level1 = 0.75%
level2 = 2.06%
level3 = 0.96%  (we have been using level3 experimentally for the last
third of october)

false positive = non-spam email sent by levelX listed server.


Per Jessen

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Re: [swinog] UCEProtect Blacklist

2007-11-04 Diskussionsfäden Per Jessen
Xaver Aerni wrote:

 Is possible in the international Trafic you have less false positives.
 But here in Switzerland is it possble till 30 % false possitives
 Mails.
 

Hello Xaver

I have not looked at how much traffic we have coming from Sunrise (for
example), but you're right - if we had lots of Sunrise traffic, we
would also see more FPs from UCEprotect level3.  From our point of
view, it wouldn't change  much as we only allocate 0.4 points for a
level3 hit. 

I don't have any stats on how much international vs. how much Swiss
traffic we have.  Interesting question - I'll have to look into that.


/Per Jessen, Herrliberg

-- 
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Re: AW: [swinog] UCEProtect Blacklist

2007-11-03 Diskussionsfäden Marco Meile
I don't think that.

If you Pay Money for delisting, you can wait for a while and you are
listed again.
The Problem are the Dynamic IP Subnets. if to much of the Cosumers
Infected with any spambots,
the Subnet got listed again, and if 2 or 3 subnets in a AS are listed,
the whole are got listed...

so, the only way for sunrise i think is create a own AS for all Dynamic
Ranges and one for fixed/business ranges...

Regards

Marco

Xaver Aerni wrote:
 Hello,
 This is the Problem Sunrise won't pay money. And they want make money.
 I think the best way is to removie UCEProtect.net level 3 from your
 Blacklist. 
 Greetings
 Xaver 

   
 -Ursprüngliche Nachricht-
 Von: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] Im Auftrag von Marco Meile
 Gesendet: Freitag, 2. November 2007 21:47
 An: [EMAIL PROTECTED]
 Betreff: [swinog] UCEProtect Blacklist

 Hi there

 We have some Problems with the UCEProtect.net blacklist.
 He lists some Subnets and AS who dosnt send Spam from us Customers...
 e.g. the AS6730 (Sunrise) a lot of us costumers using this 
 Provider have Problem on E-Mail Services.
 But really Spammers are not listed :D

 Maybe the Blacklists add some  subnets of Big Companys, cause 
 for delisting you need to pay some money...

 dnsstuff.com uses this blacklist in the lookup tool i dont 
 know how many providers using this list.

 Anyone there know more about this Blacklist?
 The Service is Provided by admins.ws
 and for the fun try www.admins.ws/../../etc/passwd


 Marco


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Re: [swinog] UCEProtect Blacklist

2007-11-03 Diskussionsfäden Daniel Kamm
On Fri, 2007-11-02 at 21:46 +0100, Marco Meile wrote:
 We have some Problems with the UCEProtect.net blacklist.

We considered UCEprotect as absolutely unreliable and unprofessional and
are ignoring listings there. And I think so are 'the big swiss ones'.
And for sure, it's impossible to handle all those RBL which are online.

IMO any postmaster who blockes mails upon one blacklist entry is ...
(what was that polite description of moron?) ;)

Cheers
 - Dan

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Re: [swinog] UCEProtect Blacklist

2007-11-03 Diskussionsfäden Per Jessen
Daniel Kamm wrote:

 On Fri, 2007-11-02 at 21:46 +0100, Marco Meile wrote:
 We have some Problems with the UCEProtect.net blacklist.
 
 We considered UCEprotect as absolutely unreliable and unprofessional
 and are ignoring listings there. And I think so are 'the big swiss
 ones'. 

Hi Daniel,

I would be interested to know why you find UCEprotect to be unreliable
and unprofessional?  

 IMO any postmaster who blockes mails upon one blacklist entry is ...
 (what was that polite description of moron?) ;)

There is no shortage of incompetent postmasters and mail-admins. :-(



/Per Jessen, Herrliberg

-- 
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Re: [swinog] UCEProtect Blacklist

2007-11-03 Diskussionsfäden Per Jessen
Xaver Aerni wrote:

 Wy is unproffesional,
 UCEprotect is blocking AS I think this isn't proffesional. 

Actually, UCEprotect is not blocking anything.  They only provide the
means for other people to do so.  Anyone who uses UCEprotect level3
have been duly warned. 


/Per Jessen, Herrliberg

-- 
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[swinog] UCEProtect Blacklist

2007-11-02 Diskussionsfäden Marco Meile
Hi there

We have some Problems with the UCEProtect.net blacklist.
He lists some Subnets and AS who dosnt send Spam from us Customers...
e.g. the AS6730 (Sunrise) a lot of us costumers using this Provider have
Problem on E-Mail Services.
But really Spammers are not listed :D

Maybe the Blacklists add some  subnets of Big Companys, cause for
delisting you need to pay some money...

dnsstuff.com uses this blacklist in the lookup tool
i dont know how many providers using this list.

Anyone there know more about this Blacklist?
The Service is Provided by admins.ws
and for the fun try www.admins.ws/../../etc/passwd


Marco


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AW: [swinog] UCEProtect Blacklist

2007-11-02 Diskussionsfäden Xaver Aerni
Hello,
This is the Problem Sunrise won't pay money. And they want make money.
I think the best way is to removie UCEProtect.net level 3 from your
Blacklist. 
Greetings
Xaver 

 -Ursprüngliche Nachricht-
 Von: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] Im Auftrag von Marco Meile
 Gesendet: Freitag, 2. November 2007 21:47
 An: [EMAIL PROTECTED]
 Betreff: [swinog] UCEProtect Blacklist
 
 Hi there
 
 We have some Problems with the UCEProtect.net blacklist.
 He lists some Subnets and AS who dosnt send Spam from us Customers...
 e.g. the AS6730 (Sunrise) a lot of us costumers using this 
 Provider have Problem on E-Mail Services.
 But really Spammers are not listed :D
 
 Maybe the Blacklists add some  subnets of Big Companys, cause 
 for delisting you need to pay some money...
 
 dnsstuff.com uses this blacklist in the lookup tool i dont 
 know how many providers using this list.
 
 Anyone there know more about this Blacklist?
 The Service is Provided by admins.ws
 and for the fun try www.admins.ws/../../etc/passwd
 
 
 Marco
 
 
 --
 For list-off Contact use: silicium (-at-) natural-geek.org
 
 
 PGP: 49F8 C29E 4F4E E438 BD69 0BCE D1DA 4B0C 7C32 C715
 
 
 
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 G++ e+ h++ r y+ 
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